Sugar Hill Improvement Association Address: 1411 Route 117, Sugar Hill, NH 03586 Phone: (603) 823-9967 Associations Other Businesses: Sugar Hill Historical Museum at 1400 Route 117, Sugar Hill, NH 03586 Sugar Hill Town Clerk at 1411 Route 117, Sugar Hill, NH 03586 Sugar Hill Landscapes at 1331 Route 117, Sugar Hill, NH 03586